Spectrum of Hydromagnetic Waves in the Exosphere
Title | Spectrum of Hydromagnetic Waves in the Exosphere PDF eBook |
Author | Gordon James MacDonald |
Publisher | |
Pages | 72 |
Release | 1962 |
Genre | Atmosphere, Upper |
ISBN |
A disturbance in the exosphere generates waves in three partially separable modes. These modes are described by considering the vorticity about a line of force, the two-dimensional divergence of velocity in the plane perpendicular to the line of force, and the component of velocity along the line of force. The propagation of vorticity is one-dimensional and there is no geometrical attenuation; energy is lost only through the finite conductivity of the medium. The propagation of the longitudinal velocity component is almost one-dimensional but is heavily damped at high frequencies. In a gravitational field, the medium is no longer uniform and at low frequencies the modes are coupled in a complicated way. For parallel magnetic and gravitational fields, the vorticity mode is still separable and gravity leads to anisotropic dispersion in the other modes.-p.i.
Spectrum of Hydromagnetic Waves in the Exosphere
Title | Spectrum of Hydromagnetic Waves in the Exosphere PDF eBook |
Author | Gordon J. F. MacDonald |
Publisher | |
Pages | 72 |
Release | 1962 |
Genre | Exosphere |
ISBN |
A disturbance in the exosphere generates waves in three partially separable modes. These modes are described by considering the vorticity about a line of force, the two-dimensional divergence of velocity in the plane perpendicular to the line of force, and the component of velocity along the line of force. The propagation of vorticity is one-dimensional and there is no geometrical attenuation; energy is lost only through the finite conductivity of the medium. The propagation of the longitudinal velocity component is almost one-dimensional but is heavily damped at high frequencies. In a gravitational field, the medium is no longer uniform and at low frequencies the modes are coupled in a complicated way. For parallel magnetic and gravitational fields, the vorticity mode is still separable and gravity leads to anisotropic dispersion in the other modes.
Spectrum of Hydromagnetic Waves in Exosphere [with List of References]
Title | Spectrum of Hydromagnetic Waves in Exosphere [with List of References] PDF eBook |
Author | |
Publisher | |
Pages | 58 |
Release | 1962 |
Genre | Exosphere |
ISBN |
Hydromagnetic Waves in the Magnetosphere and the Ionosphere
Title | Hydromagnetic Waves in the Magnetosphere and the Ionosphere PDF eBook |
Author | Leonid S. Alperovich |
Publisher | Springer Science & Business Media |
Pages | 437 |
Release | 2007-12-05 |
Genre | Science |
ISBN | 1402066376 |
Here is a fascinating text that integrates topics pertaining to all scales of the MHD-waves, emphasizing the linkages between the ULF-waves below the ionosphere on the ground and magnetospheric MHD-waves. It will be most helpful to graduate and post-graduate students, familiar with advanced calculus, who study the science of MHD-waves in the magnetosphere and ionosphere. The book deals with Ultra-Low-Frequency (ULF)-electromagnetic waves observed on the Earth and in Space.
NASA Technical Report
Title | NASA Technical Report PDF eBook |
Author | |
Publisher | |
Pages | 492 |
Release | 1962 |
Genre | Aerodynamics |
ISBN |
Publications of Goddard Space Flight Center
Title | Publications of Goddard Space Flight Center PDF eBook |
Author | Goddard Space Flight Center |
Publisher | |
Pages | 1700 |
Release | |
Genre | Astronautics |
ISBN |
Measurement of the Natural Hydromagnetic Wave Spectrum and Investigation of Possible Ionospheric Heating by Hydromagnetic Waves
Title | Measurement of the Natural Hydromagnetic Wave Spectrum and Investigation of Possible Ionospheric Heating by Hydromagnetic Waves PDF eBook |
Author | William Richard Sorenson |
Publisher | |
Pages | 114 |
Release | 1967 |
Genre | Ionosphere |
ISBN |